66070337 has 2 divisors, whose sum is σ = 66070338. Its totient is φ = 66070336.

The previous prime is 66070321. The next prime is 66070343. The reversal of 66070337 is 73307066.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65141041 + 929296 = 8071^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 66070337 - 2⁴ = 66070321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66070357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33035168 + 33035169.

It is an arithmetic number, because the mean of its divisors is an integer number (33035169).

Almost surely, 2^66070337 is an apocalyptic number.

It is an amenable number.

66070337 is a deficient number, since it is larger than the sum of its proper divisors (1).

66070337 is an equidigital number, since it uses as much as digits as its factorization.

66070337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 66070337 is about 8128.3661949988. The cubic root of 66070337 is about 404.2675110437.

The spelling of 66070337 in words is "sixty-six million, seventy thousand, three hundred thirty-seven".